MakeItFrom.com
Menu (ESC)

Grade 300 Maraging Steel vs. AISI 418 Stainless Steel

Both grade 300 maraging steel and AISI 418 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.5 to 18
17
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 640 to 1190
680
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
1100
Tensile Strength: Yield (Proof), MPa 760 to 1990
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1480
1500
Melting Onset (Solidus), °C 1430
1460
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 5.1
2.9
Embodied Energy, MJ/kg 68
41
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 16
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 35 to 68
38
Strength to Weight: Bending, points 28 to 43
29
Thermal Shock Resistance, points 31 to 62
40

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 0
12 to 14
Cobalt (Co), % 8.5 to 9.5
0
Iron (Fe), % 65 to 68.4
78.5 to 83.6
Manganese (Mn), % 0 to 0.1
0 to 0.5
Molybdenum (Mo), % 4.6 to 5.2
0 to 0.5
Nickel (Ni), % 18 to 19
1.8 to 2.2
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.5 to 0.8
0
Tungsten (W), % 0
2.5 to 3.5
Zirconium (Zr), % 0 to 0.020
0